US2964994A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microfilm camera
Assignee: Individual
•
Filing: 1957-06-17
•
Granted: 1960-12-20
•
Expires: 1977-06-17
Abstract
No abstract record available.
Inventors
- 👤 Adler Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:38
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/50
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1879040A
Cited
US2177135A
Cited
US2292825A
Cited
US2478641A
Cited
US2632643A
Cited
US2585276A
Cited
US2719714A
Cited
US2747462A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |